The amount of a N-alpha-acetyltransferase 50 (human) when measured in cerebrospinal fluid. The trait is Ontology of Biological Attributes entry OBA_2080875 (level of N-alpha-acetyltransferase 50 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid N-alpha-acetyltransferase 50 (human) amount.